The Market House in Penzance is a Grade I listed building situated at the top of Market Jew Street, Penzance. The Market House was completed in 1838, originally to house a market in the western half of the building and the guildhall in the east. The basement below the guildhall originally contained cells for prisoners, while the first floor was used as a grammar school from 1867 to 1898. The upper storey of the western end housed the Corn Exchange which also served a dual purpose as a theatre. It was officially opened on 28 June 1838. The western part of the building is now occupied by Lloyds Bank while the rest of the building is unused and in need of repair.